Same chapter3 marksDifficulty: Medium
Construct a triangle with sides 5 cm, 6 cm and 7 cm and then construct its incircle. State how the centre and the radius are found.
Constructions
3 marksDifficulty: Medium
Construct a circle of radius 4 cm. Mark a point P at a distance of 7 cm from the centre and construct a pair of tangents from P to the circle. Measure and record the length of a tangent.
Original Khojo Papers practice question — not from a past board paper.
Answer
Each tangent measures about 5.7 cm
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Join OP and draw a circle on OP as diameter; it cuts the given circle at the points of contact. By the tangent–radius property the tangent length is √(72 − 42) = √33 ≈ 5.7 cm, which the measurement should confirm.
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